The sub ball propagation of Narcissus usually takes place in autumn. Gently break off the small bulbs on both sides of the female bulbs of Narcissus as seed bulbs, and then plant them separately. It should be noted that the planting depth of the female ball should be shallow rather than deep, so as to speed up the propagation speed. If it is too deep, the occurrence of the sub ball is often less. In addition, slicing is also needed to cut the bulb. A 3-4 knife is cut longitudinally from the stem disk to the top, with a depth of about half of the bulb. The cut bulbs were placed in clean dry sand to form callus, and then transferred to the incubator with a temperature of about 21 ℃ for culture. When the temperature rises to 30 ℃ and the relative humidity is maintained at about 85%, most of the sub balls can be produced after three months or so, and then the sub balls can be taken down for replantation. It takes 3 - 4 years to grow a seed bulb to become a flowering bulb.
The sowing and propagation time of Narcissus is mostly in the middle of September. The culture medium is suitable for the mixture of rotten leaf soil, peat soil and a small amount of coarse sand. Before sowing, the medium should be disinfected first and then seeded. After sowing, fine management is adopted. Generally, the next spring can sprout and grow into small plants. In early summer, leaves and roots wither and small bulbs form. It takes about 4 - 5 years to plant small bulbs to bloom.
